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You see this error message while uninstalling your Trend Micro program on Windows:

"Uninstallation Incomplete. Error code: # 0, 4004, 0x00000000"

Why did this happen?

You tried to remove the program while another software is currently installing or uninstalling.

What should I do next?

Stop the Windows Installer Service:

  1. Log onto your computer using an account with administrator privileges.
  2. Click the Start ⊞, type cmd, right-click Command Prompt, then choose Run as administrator.
  3. Type these commands, then press ENTER after each entry:
    • msiexec /unreg
    • msiexec /regserver
  4. Restart your computer.
  5. Try to uninstall it again.
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